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| a fool or simpleton; ninny. |
| a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison. |
| heart-lung machine | |
| —n | |
| a machine used to maintain the circulation and oxygenation of the blood during heart surgery | |
heart-lung machine n.
An apparatus through which the blood is temporarily diverted, especially during heart surgery, to oxygenate it and pump it throughout the body.
| heart-lung machine
An apparatus through which blood is temporarily diverted, especially during heart surgery, in order to oxygenate and pump it, thus maintaining circulation. |